SG155800A1 - Manufacturing method of glass substrate for magnetic disc, manufacturing method of magnetic disc, and glass substrate holder - Google Patents
Manufacturing method of glass substrate for magnetic disc, manufacturing method of magnetic disc, and glass substrate holderInfo
- Publication number
- SG155800A1 SG155800A1 SG200802291-5A SG2008022915A SG155800A1 SG 155800 A1 SG155800 A1 SG 155800A1 SG 2008022915 A SG2008022915 A SG 2008022915A SG 155800 A1 SG155800 A1 SG 155800A1
- Authority
- SG
- Singapore
- Prior art keywords
- glass substrate
- manufacturing
- magnetic disc
- holder
- substrate holder
- Prior art date
Links
Landscapes
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
The manufacturing method uses a glass substrate holder which can prevent generation of misshape or warp of the glass substrate giving the glass substrate superior flatness and low roughness. The glass substrate holder 100 is used in a chemical strengthening processing step for carrying out ion exchange by dipping the glass substrate into a chemical strengthening processing solvent of molten chemical strengthening salt, and in a subsequent cooling step. The glass substrate holder includes a plurality of holding units 110, and a substrate heating unit 150 for, in a noncontacting manner, heating the part 116 of the glass substrate not in contact with the holding unit, and/or holder cooling units 160 for cooling the holding units. Thereby the change of temperature of the glass substrate becomes uniform.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG200802291-5A SG155800A1 (en) | 2008-03-24 | 2008-03-24 | Manufacturing method of glass substrate for magnetic disc, manufacturing method of magnetic disc, and glass substrate holder |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
SG200802291-5A SG155800A1 (en) | 2008-03-24 | 2008-03-24 | Manufacturing method of glass substrate for magnetic disc, manufacturing method of magnetic disc, and glass substrate holder |
Publications (1)
Publication Number | Publication Date |
---|---|
SG155800A1 true SG155800A1 (en) | 2009-10-29 |
Family
ID=41217492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
SG200802291-5A SG155800A1 (en) | 2008-03-24 | 2008-03-24 | Manufacturing method of glass substrate for magnetic disc, manufacturing method of magnetic disc, and glass substrate holder |
Country Status (1)
Country | Link |
---|---|
SG (1) | SG155800A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013104589A1 (en) | 2013-05-06 | 2014-11-20 | Schott Ag | Method for adjusting a warpage of a chemically tempered glass pane and glass pane to be produced according to the method |
-
2008
- 2008-03-24 SG SG200802291-5A patent/SG155800A1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102013104589A1 (en) | 2013-05-06 | 2014-11-20 | Schott Ag | Method for adjusting a warpage of a chemically tempered glass pane and glass pane to be produced according to the method |
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